You will not be able to find get her back as an assistant once you get Wendy. I was originally going to make her ghost wandering an alley in the city level but it's scrapped for something else.
I have machine translated Japanese because I wanted to put it on DLSite and reading written reviews I learnt the only saving grace for machine translation is that it's attracting people who have played Phasmo. There are so many dialogues written in this game and many will be added and change in the future. If I hire people translate it for me it will cost me more than what I have earned myself.
But people can edit .csv files in to translate nearly on all text in the game. There is one problem with the version uploaded here. For now, it has no option to resize text causing many text to go out of bounds.